text-analysis/lib.py at master · minsk-python-dojo/text-analysis · GitHub

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from string import ascii_letters


def length_of_str(text: str) -> int:
    counter = 0
    for char in text:
        counter += 1
    return counter


def word_count(text: str) -> int:
    if text == "":
        return 0

    counter = 0
    is_letter = False

    for char in text:
        if char != " ":
            is_letter = True
        elif is_letter:
            counter += 1
            is_letter = False

    if is_letter:
        counter += 1
    return counter


def sentences_count(text: str) -> int:
    counter = 0
    while text:
        to_slice_count = 1
        if text[:3] == '...':
            counter += 1
            to_slice_count = 3
        elif text[:2] == '?!':
            counter += 1
            to_slice_count = 2
        elif text[0] in '.!?':
            counter += 1
        text = text[to_slice_count:]
    return counter


def filter_of_letter(char: str) -> bool:
    return char in ascii_letters


def letter_count(text: str) -> int:
    # counter = 0
    # for char in text:
    #     if char.isalpha():
    #             counter += 1
    # return counter

    return len(list(filter(filter_of_letter, text)))